3 -webkit-transform:translateZ(0);
6 <img style="-webkit-filter: contrast(0)" src="resources/reference.png">
7 <img style="-webkit-filter: contrast(0.5)" src="resources/reference.png">
8 <img style="-webkit-filter: contrast(1.0)" src="resources/reference.png">
9 <img style="-webkit-filter: contrast(2)" src="resources/reference.png">
10 <img style="-webkit-filter: contrast(5)" src="resources/reference.png">
11 <img style="-webkit-filter: contrast(10)" src="resources/reference.png">